Cognomen รัตนะกร (รัตนะกร 
) , throughout the world, is an extremely rare surname. The cognomen รัตนะกร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, รัตนะกร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รัตนะกร | Thailand |